<!--
Calculating collapsed borders for big tables is expensive, so we cache them and recalculate when needed.
Here we change colgroup border color, expect that cache is invalidated and paint produces expected image.
-->
<html>
    <head>
        <title></title>
        <link rel="stylesheet" href="../../../fast/table/border-collapsing/resources/cached.css">
    </head>
    <body>
        <table style="border-collapse:collapse; border:1px solid blue">
            <colgroup style="border:4px solid yellow" id="colgroup">
                <col>
                <col>
            </colgroup>
            <colgroup>
                <col>
            </colgroup>
            <tbody>
                <tr>
                    <td style="border:2px solid lime"/>
                    <td/>
                    <td/>
                </tr>
                <tr>
                    <td/>
                    <td/>
                    <td/>
                </tr>
            </tbody>
        </table>
    </body>
</html>

